westom wrote:
On May 5, 1:19 pm, bud-- wrote:
I agree that service panel suppressors are a real good idea.
Particularly in high lightning areas, like yours, they should be used.
And I agree that you can have small transients with a service panel
suppressor and short connections of phone and cable entry protectors to
the ground at the power service.
I see nothing in either the IEEE or NIST guides that says plug-in
suppressors are not effective when used alone ...

A
surge is earthed 8000 volts destructively through the adjacent TV

The lie repeated. The suppressor that protects TV1 does no damage to TV2.

Still missing - anyone who agrees with w that plug-in suppressors do NOT
work.

Still missing - answers to simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in
suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest
solution"?
- Why does the NIST guide say "One effective solution is to have the
consumer install" a multiport plug-in suppressor?
- How would a service panel suppressor provide any protection in the
IEEE example, pdf page 42?
- Why does the IEEE guide say for distant service points "the only
effective way of protecting the equipment is to use a multiport
[plug-in] protector"?
- Why did Martzloff say in his paper "One solution. illustrated in this
paper, is the insertion of a properly designed [multiport plug-in surge
suppressor]"?
- Why do your "responsible manufacturers" make plug-in suppressors?
- Why does "responsible" manufacturer SquareD says "electronic
equipment may need additional protection by installing plug-in
[suppressors] at the point of use"?
- Where is a source that says protection is "inside every appliance"?
- How do you protect airplanes from direct lightning strikes? Do they
drag an earthing chain?

And (with some overlap):
1 - Do appliances and electronics typically have some built-in surge
protection, eg MOVs? Yes or no.
2 - If the answer to 1 is yes, which we all know to be the case, then
how can that surge protection work without a direct earth ground?
3 - How can aircraft be protected from surges, caused by lightning or
static in the air, since they have no direct earth ground?

For real science read the IEEE and NIST guides. Both say plug-in
suppressors are effective.

--
bud--